Improvement in self-heading bolts



B. BQG. STONE;

' vImprovement in Self-Heading Bolt.

N0. 127,934. I I Patent ed J ufie11,1872.

4 yz mg'd.

UNITED STATES BENJAMIN B. G. STONE, OF OATSKILL, NEW YORK.

IMPROVEMENT IN SELF-HEADING BOLTS.

Specification forming part of Letters Patent No. 127,934, dated June 11,1872.

To all whom it may concern:

Be it known that I, BENJAMIN B. G. STONE,

, of Catskill, in the county of Greene and in the State of New York,have invented certain new and useful Improvements in Self- HeadingBolts; and do hereby declare that the following is a full, clear, andexact description thereof, reference beinghad to the accompanying drawing and to the letters of reference marked thereon making a part of thisspecification.

The nature of my invention consists in the construction and arrangementof a self-heading bolt for fastening plates or patches on boilers, 850.,or for any purpose where needed, as will be hereinafter more fully setforth.

In order to enable others skilled in the art to which my inventionappertains to make and smooth. Longitudinally through the bolt A is aslot or mortise, a, in which is placed a bar, B, pivoted in the bolt bya rod, 1), passing through the bar and through slots or mortises (I cutthrough the sides of the bolt into the slot or mortise a, or, in otherwords, at right angles with it. The rod 1) passes through the bar Babout midway of its width, but nearer from the outside, made in a boileror other place where needed, the bar B being inclosedin the slot a;then. the bolt is turned and the bar B drops, forming a head to thebolt, and the nut D is tightened, the washer 0 being first put on.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, isr The headless bolt A, providedwith mortise a and side slots d, within which is secured't-he pivotedblock B, whose bearing is within the slot, substantially as shownanddescribed.

In testimony that I, claim the foregoing I have hereunto set my handthis 11th day of March, 1872.

, BENJ. B. G. STONE.

Witnesses:

HENRY B. HILL, ISAAC PRUYN.

